45170 –EU-EN-V1.2-5/11
4
Data Hold
Press the
HOLD
button to freeze the reading in the display. The 'HOLD' icon will appear on the
upper right-hand side of the display. Press the HOLD button again to return to normal operation (the
'HOLD' hold icon will disappear).
Auto Power OFF
The meter will automatically turn off after 10 minutes if no keys are pressed during this period. Auto
power off is disabled in the max/min recording mode.
Turning Power OFF
Press the power button to turn power off.
You, as the end user, are legally bound (
EU Battery ordinance
) to return all used
batteries,
disposal in the household garbage is prohibited!
You can hand over your
used batteries / accumulators at collection points in your community or wherever batteries
/ accumulators are sold!
Disposal:
Follow the valid legal stipulations in respect of the disposal of the device at the
end of its lifecycle
Useful Equations
Area equations
Cubic equations
CFM (ft
3
/min) = Air Velocity (ft/min) x Area (ft
2
)
CMM (m
3
/min) = Air Velocity (m/sec) x Area (m
2
) x 60
A = pi x R
2
R
A = W x H
W
H
